The Criffell-Dalbeattie granodiorite complex

Abstract

The Criffell-Dalbeattie granodiorite complex is composed of three granodiorie' and associated quartz-dioritic rocks. Four-fifths of the area of exposed “ granitic ” rocks is occupied by the main Criffell-Dalbeattie granodiorite and the greater part of the paper is devoted to a study of the petrology, structure and emplacement of this granodiorite pluton. It is concluded that the main granodiorite was emplaced as a magma by the forceful displacement and some assimilation of the country rooks.